RT Journal Article SR Electronic T1 A middle-aged man with progressive fatigue JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 564 OP 574 DO 10.3949/ccjm.76a.08114 VO 76 IS 10 A1 Anna M. McDivit A1 Arman T. Askari YR 2009 UL http://www.ccjm.org/content/76/10/564.abstract AB